56144424 has 64 divisors (see below), whose sum is σ = 161395200. Its totient is φ = 15943104.

The previous prime is 56144399. The next prime is 56144447. The reversal of 56144424 is 42444165.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 56144391 and 56144400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29139 + ... + 31005.

It is an arithmetic number, because the mean of its divisors is an integer number (2521800).

Almost surely, 2^56144424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56144424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80697600).

56144424 is an abundant number, since it is smaller than the sum of its proper divisors (105250776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56144424 is a wasteful number, since it uses less digits than its factorization.

56144424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2058 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 56144424 is about 7492.9582942920. The cubic root of 56144424 is about 382.9148508521.

Adding to 56144424 its reverse (42444165), we get a palindrome (98588589).

The spelling of 56144424 in words is "fifty-six million, one hundred forty-four thousand, four hundred twenty-four".